Marine Weather and Tide Forecast for Herron Island, WA
April 25, 2025 6:14 PM PDT (01:14 UTC)
Change Location
Change Location
![]() | Sunrise 6:02 AM Sunset 8:16 PM Moonrise 4:00 AM Moonset 4:56 PM |
PZZ135 Puget Sound And Hood Canal- 209 Pm Pdt Fri Apr 25 2025
Tonight - N wind 5 to 10 kt. Waves around 2 ft or less.
Sat - W wind 5 to 10 kt. Waves around 2 ft or less.
Sat night - W wind 5 to 10 kt, backing to S after midnight. Waves around 2 ft or less.
Sun - S wind around 5 kt. Waves around 2 ft or less.
Sun night - SW wind 5 to 10 kt. Waves around 2 ft or less.
Mon - S wind 5 to 10 kt. Waves around 2 ft or less. A chance of showers in the afternoon.
Mon night - S wind 5 to 10 kt. Waves around 2 ft or less. Showers.
Tue - S wind 5 to 10 kt. Waves around 2 ft or less. Showers likely, mainly in the morning.
Tue night - NW wind 5 to 10 kt, becoming sw after midnight. Waves around 2 ft or less.
Wed - S wind around 5 kt, backing to N in the afternoon. Waves around 2 ft or less.
Wed night - N wind around 5 kt. Waves around 2 ft or less.
PZZ100 209 Pm Pdt Fri Apr 25 2025
Synopsis for the northern and central washington coastal and inland waters - An onshore flow pattern will develop later today through the weekend. High pressure will build over the waters later Sunday, with a weak weather system moving across the waters later Monday into Tuesday.
7 Day Forecast for Marine Location Near Herron Island, WA

NEW! Add second zone forecast
Arcadia Click for Map Fri -- 04:14 AM PDT 14.83 feet High Tide Fri -- 05:00 AM PDT Moonrise Fri -- 06:04 AM PDT Sunrise Fri -- 11:04 AM PDT 1.64 feet Low Tide Fri -- 04:58 PM PDT 12.66 feet High Tide Fri -- 05:54 PM PDT Moonset Fri -- 08:15 PM PDT Sunset Fri -- 10:59 PM PDT 3.45 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |   |
Arcadia, Washington, Tide feet
12 am |
5.2 |
1 am |
8 |
2 am |
11.1 |
3 am |
13.6 |
4 am |
14.8 |
5 am |
14.5 |
6 am |
12.9 |
7 am |
10.5 |
8 am |
7.5 |
9 am |
4.6 |
10 am |
2.5 |
11 am |
1.6 |
12 pm |
2.3 |
1 pm |
4.4 |
2 pm |
7.2 |
3 pm |
10 |
4 pm |
12 |
5 pm |
12.7 |
6 pm |
12.1 |
7 pm |
10.5 |
8 pm |
8.3 |
9 pm |
6 |
10 pm |
4.1 |
11 pm |
3.4 |
Hammersley Inlet Click for Map Fri -- 01:43 AM PDT 2.40 knots Max Flood Fri -- 04:27 AM PDT -0.00 knots Slack Fri -- 05:00 AM PDT Moonrise Fri -- 06:05 AM PDT Sunrise Fri -- 08:42 AM PDT -2.84 knots Max Ebb Fri -- 11:53 AM PDT 0.01 knots Slack Fri -- 02:17 PM PDT 2.42 knots Max Flood Fri -- 05:02 PM PDT -0.00 knots Slack Fri -- 05:55 PM PDT Moonset Fri -- 08:15 PM PDT Sunset Fri -- 09:07 PM PDT -2.58 knots Max Ebb Tide / Current data from XTide NOT FOR NAVIGATION |   |
Hammersley Inlet, 0.8 miles E of Libby Pt, Washington Current, knots
12 am |
1.1 |
1 am |
2.1 |
2 am |
2.4 |
3 am |
1.7 |
4 am |
0.6 |
5 am |
-0.6 |
6 am |
-1.6 |
7 am |
-2.3 |
8 am |
-2.8 |
9 am |
-2.8 |
10 am |
-2.4 |
11 am |
-1.4 |
12 pm |
0.2 |
1 pm |
1.6 |
2 pm |
2.4 |
3 pm |
2.2 |
4 pm |
1.3 |
5 pm |
0.1 |
6 pm |
-1 |
7 pm |
-1.8 |
8 pm |
-2.4 |
9 pm |
-2.6 |
10 pm |
-2.4 |
11 pm |
-1.6 |
Area Discussion for Seattle, WA
Hide  HelpNOTE: mouseover dotted underlined text for definition
FXUS66 KSEW 252130 AFDSEW
Area Forecast Discussion National Weather Service Seattle WA 230 PM PDT Fri Apr 25 2025
SYNOPSIS
Broad surface high pressure will remain in place through the weekend with gradually cooling temperatures A frontal system will move through Monday night into Tuesday brining a chance for light precipitation. Temperatures look to warm once again late-week as an upper level ridge establishes itself over the region.
SHORT TERM /TONIGHT THROUGH MONDAY/
Mostly clear skies this afternoon with quite a bit of cirrus blanketing western Washington. Highs on track to reach the low 70s across most of the region, with upper 60s along the coast. Mostly clear skies continue through the weekend with gradually cooling temperatures each day: highs in the mid to upper 60s, lows in the 40s. Onshore flow may be noticeably breezy at times Saturday and Sunday afternoon with gusts up to 25 to 30 mph, particularly west of Olympia and through the Strait of Juan de Fuca.
Split flow aloft this weekend with an upper level low to the south will give way to more zonal flow by Monday, allowing an upper level shortwave trough to skirt by to the north over British Columbia. This will bring an weak surface cold front across the area Monday night into early Tuesday, bringing for chances for light rain. Snow levels above 5500 to 6000 ft will mean rain for all mountain passes. Monday will also be the coolest day, with highs in the upper 50s to near 60.
LONG TERM /TUESDAY THROUGH FRIDAY/
Showers will gradually taper off through the day on Tuesday, with the best chances for rain continuing across the mountains. An upper level ridge will build in the system's wake Wednesday and continuing into Thursday, allowing for a return to warmer temperatures. Highs Thursday look to build to the low to mid 70s. Another upper level trough looks to approach the area Friday into next weekend, but there are differences in the timing as well as how far south the trough is expected to dig. In the forecast, slight chances for precipitation return Thursday night into Friday.
AVIATION
Dry weather across western WA tonight and Saturday as an upper level low spins to our south (over CA). The flow aloft is light and variable. Onshore flow will increase overnight with low level stratus clouds covering the coast (with IFR conditions likely). Low clouds will burn back offshore by mid to late morning. A stronger onshore push will bring stratus clouds farther inland Saturday night and Sunday. 33
KSEA...Gusty N winds through around 04Z to 10-15kt. Winds easing and becoming variable 09-12Z, then becoming W to SW by 18-21Z 5-10 kt. 33
MARINE
NW to W flow over the coastal waters and Strait of Juan de Fuca where Small Craft Advisories are in effect. Expect another strong push through the strait Saturday evening. A weak front will cross the waters later Monday and into Tuesday. 33
HYDROLOGY
No river flooding is expected over the next 7 days.
SEW WATCHES/WARNINGS/ADVISORIES
WA...None.
PZ...Small Craft Advisory from 8 PM this evening to 5 AM PDT Saturday for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.
Small Craft Advisory from 6 PM Saturday to 6 AM PDT Sunday for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.
Small Craft Advisory until 6 PM PDT Saturday for Coastal Waters From Cape Flattery To James Island Out 10 Nm-Coastal Waters From James Island To Point Grenville Out 10 Nm-Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm.
Small Craft Advisory from 5 PM this afternoon to 6 AM PDT Sunday for Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-Coastal Waters From James Island To Point Grenville 10 To 60 Nm-Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm.
Area Forecast Discussion National Weather Service Seattle WA 230 PM PDT Fri Apr 25 2025
SYNOPSIS
Broad surface high pressure will remain in place through the weekend with gradually cooling temperatures A frontal system will move through Monday night into Tuesday brining a chance for light precipitation. Temperatures look to warm once again late-week as an upper level ridge establishes itself over the region.
SHORT TERM /TONIGHT THROUGH MONDAY/
Mostly clear skies this afternoon with quite a bit of cirrus blanketing western Washington. Highs on track to reach the low 70s across most of the region, with upper 60s along the coast. Mostly clear skies continue through the weekend with gradually cooling temperatures each day: highs in the mid to upper 60s, lows in the 40s. Onshore flow may be noticeably breezy at times Saturday and Sunday afternoon with gusts up to 25 to 30 mph, particularly west of Olympia and through the Strait of Juan de Fuca.
Split flow aloft this weekend with an upper level low to the south will give way to more zonal flow by Monday, allowing an upper level shortwave trough to skirt by to the north over British Columbia. This will bring an weak surface cold front across the area Monday night into early Tuesday, bringing for chances for light rain. Snow levels above 5500 to 6000 ft will mean rain for all mountain passes. Monday will also be the coolest day, with highs in the upper 50s to near 60.
LONG TERM /TUESDAY THROUGH FRIDAY/
Showers will gradually taper off through the day on Tuesday, with the best chances for rain continuing across the mountains. An upper level ridge will build in the system's wake Wednesday and continuing into Thursday, allowing for a return to warmer temperatures. Highs Thursday look to build to the low to mid 70s. Another upper level trough looks to approach the area Friday into next weekend, but there are differences in the timing as well as how far south the trough is expected to dig. In the forecast, slight chances for precipitation return Thursday night into Friday.
AVIATION
Dry weather across western WA tonight and Saturday as an upper level low spins to our south (over CA). The flow aloft is light and variable. Onshore flow will increase overnight with low level stratus clouds covering the coast (with IFR conditions likely). Low clouds will burn back offshore by mid to late morning. A stronger onshore push will bring stratus clouds farther inland Saturday night and Sunday. 33
KSEA...Gusty N winds through around 04Z to 10-15kt. Winds easing and becoming variable 09-12Z, then becoming W to SW by 18-21Z 5-10 kt. 33
MARINE
NW to W flow over the coastal waters and Strait of Juan de Fuca where Small Craft Advisories are in effect. Expect another strong push through the strait Saturday evening. A weak front will cross the waters later Monday and into Tuesday. 33
HYDROLOGY
No river flooding is expected over the next 7 days.
SEW WATCHES/WARNINGS/ADVISORIES
WA...None.
PZ...Small Craft Advisory from 8 PM this evening to 5 AM PDT Saturday for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.
Small Craft Advisory from 6 PM Saturday to 6 AM PDT Sunday for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.
Small Craft Advisory until 6 PM PDT Saturday for Coastal Waters From Cape Flattery To James Island Out 10 Nm-Coastal Waters From James Island To Point Grenville Out 10 Nm-Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm.
Small Craft Advisory from 5 PM this afternoon to 6 AM PDT Sunday for Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-Coastal Waters From James Island To Point Grenville 10 To 60 Nm-Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm.
Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
46123 | 13 mi | 114 min | SSW 1.9 | 69°F | 47°F | |||
TCMW1 - 9446482 - Tacoma Met, WA | 28 mi | 56 min | N 12G | 65°F | ||||
TCNW1 - 9446484 - Tacoma, WA | 28 mi | 56 min | 50°F | 29.81 | ||||
BMTW1 | 30 mi | 56 min | SE 1.9G | 74°F | 29.81 | |||
46122 | 42 mi | 104 min | NNE 14 | 68°F | 40°F | |||
WPOW1 - West Point, WA | 42 mi | 74 min | NNE 18G | 59°F | 29.80 | 45°F |
Wind History for Tacoma MET, WA
toggle option: (graph/table)
Airport Reports
Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
KSHN SANDERSON FIELD,WA | 11 sm | 21 min | N 07 | 10 sm | Clear | 73°F | 27°F | 17% | 29.75 | |
KOLM OLYMPIA RGNL,WA | 16 sm | 20 min | NE 06 | 10 sm | Clear | 72°F | 39°F | 31% | 29.78 | |
KTIW TACOMA NARROWS,WA | 20 sm | 21 min | NNE 08 | 10 sm | Clear | 68°F | 37°F | 32% | 29.79 | |
KGRF GRAY AAF (JOINT BASE LEWISMCCHORD),WA | 21 sm | 19 min | NNW 10 | 10 sm | Clear | 73°F | 32°F | 22% | 29.75 | |
KPWT BREMERTON NTL,WA | 22 sm | 18 min | NNE 10G16 | 10 sm | Clear | 72°F | 34°F | 25% | 29.79 |
Link to 1 hour of 5 minute data for KSHN
Terminal Aerodrome Forecast (TAF) for KSHN
Wind History Graph: SHN
(wind in knots)GEOS Local Image of Pacific Northwest
Edit Hide
Seattle/Tacoma, WA,

NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE